Hack a Day » digital audio hacks A new method for adding audio input to a Sansa Clip+
The Sansa Clip+ is a nice little MP3 player and recorder. But it doesn’t offer an input connector, instead relying on the built-in microphone. [Simon Frank] wanted to extend its functionality so he figured out how to add a standard audio jack for analog input. This is not the first time this has been done, [...]
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Hackaday Links May 9th 2012
Homecut – CNC Cutting Directory So you have a CNC machine that you use as a hobby, but would like to do some actual work on the side? Or maybe you have an idea you’d like made. Homecut is a map directory where you can maybe hook up with the right person. The Curta Mechanical [...]
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Simple mod to keep your downstairs neighbors from hearing you pound the keys
[Mesoiam] managed to pick up a Viscount hammer weighted keyboard for pretty cheap. For those who are unfamiliar, Viscount makes keyboards that feel like you’re playing a piano, hammers and all. The only problem with this, as [Mesoiam] discovered, is that even when he’s jamming with headphones in, his friends down stairs can still hear [...]
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Playing the song ?Still Alive? on hacked exercise equipment
Back in 2009, [Evi1wombat] pulled of this interesting hack, and it has slowly made its way through the internet to find us today. He obtained the computer from a recently deceased treadmill and decided to hack into it. Finding himself unable to flash the existing chip, he yanked it out and replaced it with something [...]
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Surround Sound system controller replacement includes home automation
[Neoxy] always wanted surround sound for his computer, and one day he managed to get a hold of a dead 5.1 system. Why buy one when you can repair someone’s rubbish, right? That turned out to be easier said than done, but after several false-starts he managed to resurrect the audio system by replacing the microcontroller. We [...]
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Sculpting clay with sound
A group of students at the University of Dundee have created this interesting prototype called Sound Sculpted. The goal was to sculpt clay using sound files drive the sculpting arms. Ideally, you would end up with pieces of art that were unique to each piece of music. As you can see in the video (after [...]
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Building an Arduino Chiptunes project inside an FPGA
From time to time we find ourselves in the mood for some Chiptunes. You know, the music that accompanied all of the best 8-bit console games? These days there are a lot of projects that use the audio chips of yore to recreate the sounds, but you’re always faced with the issue of sourcing those [...]
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Fifty dollars to make your car audio Bluetooth compatible
We’re rather impressed with the work [Aaron] did to add Bluetooth connectivity to his 2008 Honda. He used an aftermarket kit, but rolled in his own revisions to make it look and feel like an original feature. After being disappointed by an expensive docking system he grabbed a Jensen BT360 kit for about $35. It [...]
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Building a media player with an MSP430
A media player based on an Arduino and SD card has been done to death several times over, but that doesn’t mean we can’t appreciate [Matt]‘s MSP430 audio player. It’s a very nice piece of work that supports a FAT16 file system and only takes up 54 bytes of RAM. To make his dream of [...]
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Doppler-effect lets you add gestures to your computer
What if you could add gesture recognition to your computer without making any hardware changes? This research project seeks to use computer microphone and speakers to recognize hand gestures. Audio is played over the speakers, with the input from the microphone processed to detect Doppler shift. In this way it can detect your hand movements [...]
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RFID playlists plus a QR code concept
Here’s another audio playback hack that uses physical tokens to choose what you’re listening to. It uses Touchatag RFID hardware to control iTunes. The concept is very similar to the standalone Arduino jukebox we saw on Wednesday except this one interfaces with your computer and the tags select entire albums instead of just one song. [...]
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RFID jukebox for the kids
[Dominik] built a fun musical toy for his daughter [Anna]. It’s a jukebox that lets her play her favorite tunes using RFID tags to select between them. The project is simple, yet robust. The enclosure is a wooden craft box that you can pick up for a couple of bucks. Inside there’s an Arduino with [...]
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From reference design to USB sound card
[Entropia] decided to try his hand at rolling is own sound card. He picked out a DAC chip, started his prototyping by studying the reference design from the datasheet, then went through several iterations to arrive at this working model. He chose to base the board around the PCM2706. It’s a digital to analog converter [...]
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Playing MP3s from an FPGA
Building an audio player is a fun project. It used to be quite a task to do so, but these days the MP3 decoder chips are full-featured which means that if you know how to talk to other chips with a microcontroller you’ve got all the skills needed to pull off the project. But that [...]
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Tears from your lonely heart will activate a comforting tune
If you’re forever alone we’d guess you’ve long since stopped crying about it. But if you’re still prone to shed a tear on a dateless Valentine’s day this project’s for you. [Mikeasaurus] spruced up this pillow to play a tune when it senses your lonely soul. It’s got a moisture sensor which triggers an audio [...]
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